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How long is the human small intestine?

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Diagram of the human digestive system viewed from the front, showing and labeling organs including the mouth, teeth, tongue, salivary glands, pharynx, esophagus, liver, stomach, gallbladder, pancreas, large intestine, small intestine, appendix, rectum, and anus. — digestion The human digestive system as seen from the front.

The human small intestine is the longest part of the digestive tract, measuring approximately 670 to 760 cm (22 to 25 feet) in length.12